The register
The register lists Now Advertising Limited in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. The register records its rating as Worker (A rating).
Companies House lists it as Now Advertising Limited, number 07722078, incorporated 2011: 15 years of filings behind the name. Registered office: 6th Floor 9 Appold Street, London, EC2A 2AP, EC2A 2AP. Its filed activity puts it in professional and technical services. It has traded under other names before, including Watownson Limited.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.